body{
    font-family: "宋体","微软雅黑";
    background-color: rgba(245, 245, 220, 0.523);
}

#yin audio{
    width: 180px;
    float: left;
    display: none;
}

.navbar .shou{
    color: rgb(237, 227, 38);
}
.navbar a:hover{
    color: cadetblue;
    font-size: 18px;
}
/* .navbar a:visited{
    color: blue;
} */
.navbar{
    background-color: #333;
    width: 1100px;
    height: 55px;
    margin: auto;
    font-size: 17px;
    font-weight: bold;
}
.navbar ul #lingxi ol{
    font-size: 12px;
    width: 100px;
    z-index: 1;
}
.navbar ul #lingxi a:hover{
    font-size: 10px;
}

.navbar ul{
    width: 1000px;
    margin: auto;
}


.navbar li{
    float: left;
    list-style: none;        /* 消除列表样式 */
    position: relative;
}
.navbar li a{
    color: #f2f2f2;
    text-align: center;
    text-decoration: none;
    line-height: 55px;
    margin-right: 100px;
}
.navbar li ol{
    position: absolute;
    left: -18px;
    width: 80px;
    background: #333;
    display: none;
}
.navbar li ol li {
    width: 100%;
}
.navbar li ol li a{
    margin-right: 0px;
    text-align: center;
    display: block;
}
.navbar li:hover ol{
    display: block;
}
.navbar  img{
    height: 55px;
    float: left;
    margin-right: 80px;
    margin-left: 20px;
}
.denglu{
    float: right;
    margin-top: 17px;
    margin-right: 70px;

}
.denglu a{
    text-decoration: none;
    color: white;
    font-size: 17px;
    font-weight: bold;
}




#ti{
    width: 1100px;
    margin: auto;
}

body{
    /* height: 100vh;
        width: 100vw;
        display: flex;
        justify-content: center;
        align-items: center; */
    perspective: 2000px;
}
#s{
    width: 230px;
    height: 330px;
    position: relative;
    transform-style: preserve-3d;
    margin: 30px;

}
#s img{
    width: 100%;
    height:100%;
    position: absolute;
    border-radius: 50px 10px;
    box-shadow: 0 0 15px rgb(0, 0,0);
    backface-visibility: hidden;        /*图像面向我们时隐藏*/
    transition: 1s;
}
.a2{
    transform: rotateY(180deg);
}
#s li:hover .a2{
    transform: rotateY(0deg);
}
#s li:hover .a1{
    transform: rotateY(-180deg);
}
#s ul{
    width: 1100px;
    height: 350px;
    margin: auto;
    padding-left: 0px;
}
#s ul li{
    list-style: none;
    width: 180px;   height: 280px;
    margin-left: 30px;
    float: left;
    position: relative;
}
#s ul li:first-child{
    margin-left: 0px;
}